Cisco Cisco Prisma II EDR Receiver Installation Guide

3-8 

Operation 

78-715189-01 Rev C 

Continued

Complete the following steps to verify that the output level is within ±1.0 dB of the 

value most recently recorded. 
Note: To check the RF output without taking the amplifier out of service, check the 

input test point of the module that the amplifier is feeding. 

1. 

Connect an RF cable from the RF TEST point on the next inline module to the 

spectrum analyzer. 

2. 

Set the spectrum analyzer for the frequency span of your bandwidth. 

3. 

Measure the signal level and tilt and correct for the loss of that module’s RF 

test point. 

4. 

Check that the output level is within ±1.0 dB of the value most recently 

recorded. 
Note: If the reading is not within the proper range, refer to Chapter 4 for 

assistance in troubleshooting. 

5. 

This portion of maintenance is complete. Record the reading. 

6. 

To complete weekly maintenance, go to the next procedure, Checking Pad 

and Tilt Settings. 

 

Important: The input and output levels must be verified before any adjustments are 

made to pad and tilt settings. 
Complete the following steps to verify that the settings for pad and tilt are correct. 

1. 

Refer to your Maintenance Log to determine the most recently recorded 

settings for pad and tilt. 

2. 

Compare the recorded settings to the current settings. If either setting does 

not match, use a 1/8-in. flat-blade screwdriver and adjust the setting to the 

value most recently recorded. Or, refer to the appropriate procedure given 

earlier in this chapter. 
• 

• 

3. 

Weekly maintenance is complete. Record the reading.